Software Engineer

Building AI-Powered Software

I'm Kay Khine Win — a software engineer specializing in full-stack development, and AI-powered applications.

AI-Powered

Digital Twin

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About

A software engineer who cares about systems, users, and outcomes.

I build software with a focus on clarity, performance, and user experience. From scalable backend services to intuitive interfaces, I enjoy creating systems that solve real problems and grow with the needs of the business.

I specialize in building modern web platforms with strong foundations: thoughtful architecture, clear APIs, resilient backends, and interfaces that feel polished without being noisy.


Whether improving user experiences or designing new services, I focus on clarity, performance, and long-term maintainability.

Skills

A balanced fullstack toolkit for product-focused engineering.

I work across the stack with technologies that support maintainable architecture, strong developer experience, and polished user interfaces.

Frontend

Next.jsReactTypeScriptTailwind CSS

Backend

JavaSpring BootNext.js

Database

PostgreSQLFirebaseMySQL

Other

AI integrationsScrumProject ManagementAPIs
Certifications

Industry-recognized credentials in project management, agile delivery and product leadership.

These certifications reflect practical strength in project governance, Scrum facilitation, and product ownership.

Recent Projects

Selected work that pairs clean experience design with strong engineering.

A mix of fullstack systems, AI-powered features, and product builds designed to solve meaningful user and business problems.

Spiritual & Astrology Web App

KayAstro - Saju Calculator

2026

A modern saju calculator platform that generates personalized Korean Four Pillars readings, personality insights, and elemental balance analysis through an interactive and user-friendly experience.

Key impact

Delivered a scalable and performance-optimized saju platform capable of generating accurate Korean astrology readings, compatibility analysis, and personalized insights with secure premium access management.

Next.jsTypeScriptPostgreSQLNextAuthResendGoogle OAuthTailwind CSSJWT Authentication

Language Learning Platform

BJT Pro

2026

A full-stack Business Japanese Test (BJT) learning platform that provides structured courses, quizzes, mock exams, progress tracking, and business communication practice for Japanese language learners.

Key impact

Created a scalable e-learning platform with secure JWT authentication, Google login, automated email verification flows, and an admin dashboard for managing courses, lessons, quizzes, and student progress.

Spring BootNext.jsTypeScriptPostgreSQLFlywayJWT AuthenticationGoogle OAuthResendTailwind CSS

AI-powered Product Management

AI-PM Copilot

2026

A full-stack AI product management copilot that helps teams create projects, manage documents, and generate structured PRDs and related PM artifacts from brief inputs.

Key impact

Built a secure AI-powered product management workspace that streamlines PRD creation, organizes project documents, and persists generated PM artifacts through a scalable full-stack architecture.

Next.jsTypeScriptSpring BootSpring SecurityJWT AuthenticationPostgreSQLJPAAI Tool OrchestrationTailwind CSS

Healthcare + Family Care Platform

CareLink Mobile App

2026

A caregiving and health reminder platform that helps families remotely manage medicine schedules, health tracking, and emergency support for elderly parents.

Key impact

Designed a remote caregiving system with medicine reminders, missed-dose alerts, blood pressure tracking, and real-time notifications to improve communication between elderly parents and family caregivers.

React NativeFastAPIPostgreSQLCeleryRedisFirebase Cloud MessagingREST APIs
Contact

Let's build something thoughtful together.

I'm open to software engineering opportunities, freelance collaborations, and product conversations focused on scalable web platforms, backend systems, and AI-powered application.